I am working on adapting the standard "virtual chumby" to fill the screen of the IT. It does work with parameters, timings etc.

It's not perfect, but have a look at
http://technut.canada.googlepages.com/chumby.html
on your IT. You need to be in fullscreen and turn off "Fit to width".

I'm still tinkering, need to mask the sides off... works in FF and IE but not completely in MicroB yet. Haven't tried Opera.

zerojay plans to host Chumby pages at Jablet in future, and will set one up for you now by request (post #15 in this thread).

For more info on the jablet.net version, see
http://jablet.net/forum/viewtopic.php?t=2&start=9